Insights the hydration of portland cement under hydrothermal curing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F18%3APU129427" target="_blank" >RIV/00216305:26310/18:PU129427 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Insights the hydration of portland cement under hydrothermal curing

Popis výsledku v původním jazyce

Temperature curing significantly affects the hydration of Portland cement and its subsequent properties [1]. When a water stream saturation pressure is concomitantly applied (autoclaving), the mechanism of hydration reaction and the hydrated products are quite different from those obtained under influence of single parameter of temperature [2]. When subjected to hydrothermal conditions in oil and geothermal wells, cement slurry sets under influence of combined effect of temperature and vapor pressure. CEM I 42.5 R (denoted as CEM Extra by producer) has been submitted to the effect of different temperature - vapor pressures (100°C-0.1 MPa, 165°C -0.3 MP and 220°C-1.2 MPa) in a laboratory autoclave up to 7 days. X-Ray diffraction, Simultaneous thermogravimetric and differential thermal analysis measurements (TG/DTA) were mostly used to characterize the hydration products and their transformation under different hydrothermal curing conditions. Mechanical properties were correlated with pore structure and

Název v anglickém jazyce

Insights the hydration of portland cement under hydrothermal curing

Popis výsledku anglicky

Temperature curing significantly affects the hydration of Portland cement and its subsequent properties [1]. When a water stream saturation pressure is concomitantly applied (autoclaving), the mechanism of hydration reaction and the hydrated products are quite different from those obtained under influence of single parameter of temperature [2]. When subjected to hydrothermal conditions in oil and geothermal wells, cement slurry sets under influence of combined effect of temperature and vapor pressure. CEM I 42.5 R (denoted as CEM Extra by producer) has been submitted to the effect of different temperature - vapor pressures (100°C-0.1 MPa, 165°C -0.3 MP and 220°C-1.2 MPa) in a laboratory autoclave up to 7 days. X-Ray diffraction, Simultaneous thermogravimetric and differential thermal analysis measurements (TG/DTA) were mostly used to characterize the hydration products and their transformation under different hydrothermal curing conditions. Mechanical properties were correlated with pore structure and

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů